Fast, sensitive magnetic-field sensors based on the Faraday effect in YIG

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1990Publisher:Institute of Electrical and Electronics Engineers (IEEE)Journal:Journal of Lightwave Technology, volume 8, pages 1,838-1,842 (issn: 0733-8724,

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Authors: Deeter, M. N.; Rose, A. H.; Day, G. W.;

doi: 10.1109/50.62880

Fast, sensitive magnetic-field sensors based on the Faraday effect in YIG

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Abstract

Magnetic-field sensors based on the Faraday effect in ferrimagnetic iron garnets are investigated in terms of their sensitivity, speed, and directionality. Signal-to-noise measurements at 80 Hz on small (typically 5-mm-diameter*3-mm-long) samples of yttrium iron garnet (YIG) yield noise equivalent magnetic fields of 10 nT/ square root Hz. Frequency-response measurements exhibit virtually flat response to approximately 700 MHz. >

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National Institute of Standards and Technology
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